Service difficulty report · Warning System · Boeing 76734AF

Difficulty date
December 14, 2001
Submitted
December 17, 2001
Operation
Air carrier
Aircraft
N311UP
Make and model
Boeing 76734AF
Aircraft serial
27741
Part
Warning System
Condition
False Indication
Location
Cockpit
Stage of operation
CR
How discovered
O
Nature of condition
N
Precautionary procedure
A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

INSPECTION TYPE:N/A EICAS MSG: FWD EQPT OVERHEAT DISPLAYED AND OVERHEAT ILLUM. AFT SELECTOR WAS POSITIONED TO STBY, LT RE-ILLUM FOLLOWING 5 MIN DELAY. AFTER SELECTOR WAS POSITIONED TO OVERRIDE, EICAS MSG: FWD EQPT COOLING DISPL AND NO COOLING LIGHT ILLUM. AS A RESULT AUTO 1 AND 2 PRESS CONTROLLERS FAILED. CABIN ALTITUDE CLIMBED TO 10,000 FEET. T/S PER FIM 21-58-00 FIG 116, NO FAULTS FOUND. T/S BLEED AIR SUPPLY BITE MOD AND PACK CONTROLLERS. NO FAULTS FOUND. CHECK PRESSURIZATION AND PACK OPS WAS NORMAL. CABIN DIFF/PRESS WAS NORMAL.

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